package demo2;
//Test.java
class B{
    public B(){
        func();
    }
    public void func(){
        System.out.println("B.func()");
    }
}

class D extends B{
    private int num=1;
    public void func(){
        System.out.println("D.func()"+num);
    }
}

public class Test {
    public static void main(String[] args) {
        D d=new D();
    }
}
